11. Patrick Schwarzenegger. Age: 22. Claim to fame: The college grad and red-carpet regular is son to Arnie (with a grin to match) and Maria Shriver, and is slowly carving out a modelling and acting career. Last seen in Ryan Murphy's 'Scream Queens', he's also modelled for Tom Ford Eyewear and famously dated Miley Cyrus in 2015.
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